Valve lever



July 27 1926. 1,593,769

w. KEMP VALVE LEVER Filed Feb. l, 1926 Patented July 27, 1926.

UNITED STATES PATENT GFFICE.

WILLIAM KEMP, F ST. LOUIS, MISSOURI.

VALVE LEVER.

My invention relates to valve levers, and more particularly to turning chronometer valve levers, although not necessarily limited thereto as it is applicable to other types of valves, and, it is a distinct and practicalim provement to overcome certain practical objections to, and defects in the ordinary single piece levers heretofore used in connection with chronometer valves.

The. object of my present invention is the provision of an adjustable lever consisting of a plurality of lever elements for opening and closing chronometer valves by means of any well known controlling mechanism, such as a damper regulator control mechanism, or a float control mechanism.

A further object of the invention is to provide a longitudinally and transversely adjustable lever for turning chronometer valves to increase or decrease the maximum, or to increase or decrease the minimum capacity of the valve, each being independent of one another, or both can be adjusted at the same time.

A further object of the invention is to provide a valve lever which possesses advantages in points of simplicity and efiiciency, and, at the same time proves itself comparatively inexpensive in manufacture.

l/Vith the above and other objects in view, the invention consists in the novel features of construction, arrangement and combination of parts hereinafter more fully described and finally pointed out in the claims hereto appended.

Referring to the accompanying drawings forming a part of this specification wherein like characters of reference denote similar parts throughout the several views:

Fig. 1, is a front elevation of a valve lever applied to a chronometer valve embodying the features of my invention.

Fig. 2, is a top plan view thereof.

Fig. 3, is a detail in side elevation of the clevi's like element adjusted to a position with its longitudinal axis at an angle to the longitudinal axis of the outer lever member.

Referring to the drawings, the reference character 1 represents the casing of a turning chronometer valve having the valve stem 2.

In carrying out the aim of my invention, I provide the valvev casing 1 with a suitable face plate 3 which is fixed thereto in any suitable manner, such for instance as by set screws 4. y

Aiplication led February 1, 1926. Serial No. 85,091.

The face plate 3 is preferably provided with two openings designated 5' and two openings designated 6, so that either set of openings can receive lthe fastening devices 4; for securing the face plate 3 to the valve casing 1.

When the fastening devices are received and when the valve casing 1 is applied to horizontally disposed pipes, the fastening devices i pass through openings 6 in the face plate. The face plate 3 is provided at one end with a suitable bearing boss 7 and is also provided intermediate its ends with a pair of opposed ears 8 for receiving suitable stop screws 9, which screws limit the turning movement of the valve stem 2 in either direction.

A suitable outer lever member 10 having a longitudinal slotted opening 11 intermediate its ends, is pivotally connected at its inner end, as at 12 to the bearing boss 7 of the face plate 3.

An inner lever member 13 having the split head 14: is clamped to the valve stem 2 by means of a suitable fastening device 15v which fastening device is positioned near the inner end of the split head 14, as clearly shown in Fig. 1. The valve stem 2 is also provided with an inner nut 16 and an outer nut 17 which also serve to prevent displacement of the lever member 13 upon the valve stem 2. f The end of inner lever member 13 opposite the split head 14C thereof is provided with a longitudinally disposed slotted opening 18.

A suitable intermediate clevis lever member 19 having a transversely disposed arc shaped slotted opening 20 and a longitudinally disposed slotted opening 21 is clamped tothe outer lever member 10 in any desired adjusted position with relation thereto by means of a suitable fastening device 22 which passes through the slotted opening 11 of the outer lever member 10 and the curved slotted opening 2O of the finir;

clevis leveii'amember 19. 'The outer lever member 19 is also provided with a suitable guide and pivot pin 23 which passes through the slotted opening` 21..oli.:the cle-visle'i-'er member 19 and acts as a. 'fulcrum point, or pivot pin to permit turning movement'oli" the clevis lever member 19 when desired7 by merely loosening 1the"fastening devicel.

rlfhe inner end olf the clevis lever member V19' is provided witha suitable guide pin which passes through the slotted opening 18 oit the innerllever vmember'i which when 'the outer lever member 11:.is moved up or down, will raise or lower therouter end olf the inner lever member 13 for .openingor closing Athe valve, asl is manifest.

The control mechanismflor actuating the adjustable 'valve lever is not shown, excepting vthe upwardly directed 4chain thereof, :di ignated and the downwardly 'directed chain thereof#designated 26 ,for the reason v1tliateitlicr a damper'regular control mechanism, or atloat control mechanisn'i can be employed ler actuating the lever anu which is not apart of inylinvention.

` liroin :the foregoing descijipti' n :and i by reference' to the` drawings, it`| will'v be apy parent that xsliding the clevislevcr'member 19 outwardly from the position shown Ain 'Fig'. l, and f then locking` yit such adjusted position: tlie"ta'stening device r22,

will decrease"tlietininiinum capacity ofthe valve Ywhen the lever is up and decrease its maximum capacity when the'A lever is down without 'in any' way alilectin 0" the Idistai'ice" of travell ol the valve lever member 10 actuated by a control mechanism andbya'djusting the clevis leveruneinber '19 infthe Aopposite direction,"theA minimum capacity of the-'valve will'be increased when` the' lever memberj 10 is 4up -Kand this in turnnvill` 'increase the maximum capacity of the/valve 'when the lever .member 10"` is down.

ll" the yclevis4 lever^member 19''is`adjusted to' the postionshowninIFigJB, with the f 'longitudinali axis at an angle" to" the" loiigiftudinal laxis'o'l'` the' outer' lever member 10, it will lbe Lapparenttthat when the lever nember '10" isup, the valveY increases "the .minimum capacityv thereol'7 "whereas when the leverA member 10:'is 'dow/inthe' valve is open 13' for "maximum capacity, thus when clevisnn'ember 19"i.s1tilted inthe opposite y v'directionto that shownfin Fig.' 3 and the lever member 10 is up, the valvenvill decrease' the/'minimum` capacityywhereas when /the'lever memberllO'isdown, it increases theinaximum capacity of the' valve.

`Tfillieir the adjustable valve'- lever is oper" atedby any damperregulatorcontrolmeehyanismgtlie valve'isl principally Ausedl to'control"the-minimum andf'maxiinum speed of "astolter and `lian `engine,'or4 a. turbine and float controlmechanism, the valve is princip lly iused lor such purpose as tozcontrol the ecd water to boilersforv'for governing purpose;or controlling Water levels, etc.

lidmanyadvantages of the herein described invention will readily suggest them- `selves to those skilled in the art to which it appertains.

l tdeiiot'w'vish'tobe understood as having limited myself to the exact details ofcoustructionA shown anddescribed, .but v'desire to I have it understood that fthe A'invention l 'have` shown in'the :drawings.'is'fmerely illustrat-ivre,` as it is manifest thatfvarious minor changes mayljbe madein' the" exact construction" andj particularly" arrangenient'olf .parts "without tdfeparting from the. spirit^ol"1my "invention, hence Preserve 'therrig it to :maire Vany such changes, ormodificationsaslmey fairly tall' vvithiir'thelscopel ofthe appended el aims when'l fairly construed.

llhatl claimis: l 1. in combination''with avalveeasing' and 'ar valve stem, a"lace' plate lixedto thevalvc casing an outer 'levermember' 4pivotally connected at 'its' 'inner .end to the'iliacel plate;` an inner lever memberifixedat yits 'inner end to the `valve stem and .i an intermediate V74lever member connecting. the' inner lever -:member withl the 4outer 'lever' member-and disposed lbetween said inner'and,outer'levei' members.

2. ln conibinationvwith afvalve casing-and a'valve stein,v a' 'faceplate'liXe'd-to the valve casing, an outer lever member pivotalfly coiinected at- 'its 'inner-end toA 'the Vlace `plate, an "inner leveimmember zlixed'A at'fits inner Vend to' the valve lfstem, `an intermeldia-te :lever member connecting. thel inner-lever `member with the 'outer lever. member and'means'A for 3. In combination witlrza 'valve casing and 'a valve stemfa" aceplateilined to 'thefvalve casing, an outer lever memberpivotally'coninner leveirmemberlfnied'atits inner-end to the valve stem,' an 4intermediate llever rmeinber connecting the` inner .levercmember'with the outer levermember;means"v for" longitudina-lly adgusting. the `intermediate lever member withfrela'tion tothe inner aiidouter lever members and meansfit'or adjusting the longitudinal zaiiis of thevouter lever :member atan angle tof-theV longitudinaliaxis` oi* the lintermediate clevis'levenmember.

ing oi? the valve," a lever consisting: of' three levery members, one Yof 1which 4members is pivotally connected to the tace pla-tefasecably supported by the? first mentioned vlever member and having a slidingpinfconnection lll) with the slotted opening of the second lever member.

5. In combination with a chronometer valve-having a turning valve stem, a face plate fixed to the casing of the valve, an out er member having a slotted opening pivotally connected to the face plate, an inner lever member having a slotted opening and With a split inner end iixed to the valve stem, an intermediate clevis lever member having a longitudinally disposed slotted opening pivotally supported intermediate its ends by the outer lever member, said intermediate clevis lever member having a transversely disposed curved slotted opening near its outer end, a fastening device passing through the slotted opening of the outer lever member and the curved slotted opening of the intermediate clevis lever member for retaining the latter lever member in various adjusted positions with relation to the outer lever member, a guide pin carried by the inner end of the clevis lever member receivable for sliding movement in the slotted opening of the inner lever member and actuating the inner lever member when the outer lever member is actuated and an adjustable stop screvv carried by the face plate to limit the turning movement of the lever.

6. In combination With a chronometer valve having a turning valve stem, a face plate iixed to the casing of the valve, an outer lever member pivotally connected to the face plate, an inner lever member iixed to the valve stem, an intermediate lever member, means to permit longitudinal adjustment of the intermediate lever member with relation to the outer and inner lever members and means to permit angular adjustment of the intermediate lever member With relation to the inner and outer lever members to control the minimum and maximum capacities of the valve.

7. In combination with a ohronometer valve having a. turning valve stem, a face plate iiXed to the casing of the valve, a lever having pivotal connection with the face plate and fixed connection with the valve stemand sai-d lever having an adjustable member for controlling the degree of turning movements of the valve stem.

In testimony whereof I have hereunto affixed my signature.

WILLIAM KEMP. 

